<正> 目前已有不少国家生产水泥刨花板。它是以刨花、水泥为主要原料,经搅拌、成型、加压和养护等工序制成,是一种比较经济、理想的建筑材料。为了进一步提高产品质量,研究工作一直在进行。 我国于1976年在上海、广州等地的木材加工厂开始了这方面的试验研究,上海还试产了一批硬质水泥刨花板。中国林业科学院木材研究所等单位也开始研究和试制水泥刨花板,在这个基础上,北京最近建成一新车间,并已开始投产。 不久前作者对美国爱达荷大学林学院林产品系进行了短期的学术访问。在A·A·Moslemi教授指导下,做了三层定向水泥刨花板的试验,探索了杨木刨花与水泥、水泥与水的合适的混合比例。

Wood-cement panicleboard, a fine material used in building, consists basically of cement an j wood chips. It is manufactured through the processes of mixing, forming, pressing and setting. At present, cement-bonded particleboard is widely produced throughout the world. However, research continues to improve its quality. The author, as a visiting scholar in the Department of Forest Products, College of Forestry, wildlife and Range Sciences, University of Idaho, performed experiments on a 3-layer oriented cement-bonded board to determine the optimal ratios between cement and particles and between water and cement. The experiments showed that the three-layer oriented method can greatly increase the board strength and the optimal ratios of cement to particles, and water to cement are, respectively, 2.5 and 0.65-